If you have mostly hard floors, can consider a Miele which comes with a 10 year warranty (promotion for this month only). $389.99 for the C3 Parquet or $299.99 for the C1 Celebration. Extra $25 off at Costco if you pay with Masterpass.

i bought one refurbished from dyson's official refurb site on eBay for $200 in 2016. i think it's fine. it came basically as new, the parts were loose in the box, and the canister looked like it had been used a couple times.